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      1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #ifndef CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_
      6 #define CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_
      7 
      8 #include <string>
      9 
     10 #include "base/compiler_specific.h"
     11 #include "chrome/browser/media/media_stream_devices_controller.h"
     12 #include "components/infobars/core/confirm_infobar_delegate.h"
     13 
     14 
     15 // This class configures an infobar shown when a page requests access to a
     16 // user's microphone and/or video camera.  The user is shown a message asking
     17 // which audio and/or video devices he wishes to use with the current page, and
     18 // buttons to give access to the selected devices to the page, or to deny access
     19 // to them.
     20 class MediaStreamInfoBarDelegate : public ConfirmInfoBarDelegate {
     21  public:
     22   virtual ~MediaStreamInfoBarDelegate();
     23 
     24   // Handles a permission request (in |request|) for |web_contents|.  If this
     25   // involves prompting the user, creates a media stream infobar and delegate,
     26   // then checks for an existing infobar for |web_contents| and replaces it if
     27   // found, or just adds the new infobar otherwise.  Returns whether an infobar
     28   // was created.
     29   static bool Create(content::WebContents* web_contents,
     30                      const content::MediaStreamRequest& request,
     31                      const content::MediaResponseCallback& callback);
     32 
     33  private:
     34   friend class WebRtcTestBase;
     35 
     36   explicit MediaStreamInfoBarDelegate(
     37       scoped_ptr<MediaStreamDevicesController> controller);
     38 
     39   // ConfirmInfoBarDelegate:
     40   virtual void InfoBarDismissed() OVERRIDE;
     41   virtual int GetIconID() const OVERRIDE;
     42   virtual Type GetInfoBarType() const OVERRIDE;
     43   virtual MediaStreamInfoBarDelegate* AsMediaStreamInfoBarDelegate() OVERRIDE;
     44   virtual base::string16 GetMessageText() const OVERRIDE;
     45   virtual base::string16 GetButtonLabel(InfoBarButton button) const OVERRIDE;
     46   virtual bool Accept() OVERRIDE;
     47   virtual bool Cancel() OVERRIDE;
     48   virtual base::string16 GetLinkText() const OVERRIDE;
     49   virtual bool LinkClicked(WindowOpenDisposition disposition) OVERRIDE;
     50 
     51   scoped_ptr<MediaStreamDevicesController> controller_;
     52 
     53   DISALLOW_COPY_AND_ASSIGN(MediaStreamInfoBarDelegate);
     54 };
     55 
     56 #endif  // CHROME_BROWSER_MEDIA_MEDIA_STREAM_INFOBAR_DELEGATE_H_
     57